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Thread: pH Level Puzzle

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    pH Level Puzzle

    My pH level stays remarkably constant. For example, it has been at the same is level for a month now without me adding any acid. To me this is amazing and unbelievable. I have a new Intellichlor IC40 that has been on and generating since August. This amazing pH stability began when my new IC40 went online. The reason that this is so amazing to me is that previously, with my first IC40, I was in a daily fistfight with my pH level which wanted to raise .1 or .2 per day until well above 8.0. This went on for 6 years and I used a LOT of acid.

    Could this be the result of some kind of redesign of the IC40? Or was my first IC40 just bad? Has anyone else experienced something like this? Any other explanations?
    Arizona. 22K Gal, IG, rectangular, plaster. SWCG IntelliChlor IC40. Pentair WhisperFlo 1.5 HP 2 speed
    Pentair Clean & Clear Plus 420 sq ft cartridge filters. in-floor. Pool completed April, 2008. K-2006.

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    JasonLion's Avatar
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    May 2007
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    Silver Spring, MD
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    Re: pH Level Puzzle

    MY PH is very very stable, and has been for years, despite my SWG. It has to do with your other levels. If you keep TA relatively low, the PH will be stable. If TA is higher the PH will constantly go up.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Re: pH Level Puzzle

    Quote Originally Posted by JasonLion View Post
    MY PH is very very stable, and has been for years, despite my SWG. It has to do with your other levels. If you keep TA relatively low, the PH will be stable. If TA is higher the PH will constantly go up.
    Very interesting! That would fit my situation. My TA is low (20) and it dropped about the same time that I got the new IC40. I lowered my pH (and CSI to -1.50) to battle some scale stains. Thanks Jason!
    Arizona. 22K Gal, IG, rectangular, plaster. SWCG IntelliChlor IC40. Pentair WhisperFlo 1.5 HP 2 speed
    Pentair Clean & Clear Plus 420 sq ft cartridge filters. in-floor. Pool completed April, 2008. K-2006.

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    Divin Dave's Avatar
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    Oct 2013
    Location
    Longview, Texas
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    Re: pH Level Puzzle

    Yup.

    I have a IC40 also, and I haven't added any acid since probably July. My PH is rock solid at 7.4.
    Divin Dave,
    IG Vinyl, 15' x 30', 3 1/2' - 6' deep, Oval, ~15K gal, Intelliclor IC40, Intelliflo VS pump, Clean and Clear 420 Filter, auto-fill-disabled, Retrofit LED Color Light, Dolphin Nautilus Robot, TF100 Test Kit, Taylor K1766 Salt Test Kit, Tftestkit Pressure Gauge.
    www.tftestkits.net Experience- it's what's learned just after you needed it most !!

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